An Improved Quasi-continuous Algorithm for Rotational Shell Magazine Position Control
Based on the existing researches on quasi-continuous algorithm, a novel improved quasi-continuous controller is designed to improve the precision and robustness of rotational shell magazine position control in the automatic loading process of a large caliber artillery. By combining a sliding mode disturbance observer, the novel controller is independent of the unknown system uncertainty boundary, and no new parameters are introduced, which will lower the difficulties of controller designing and adjusting. The stabilities of controller and close-loop scheme are verified by Lyapunov functions. The simulated and experimental results have demonstrated the superiority of the improved controller over the existing quasi-continuous algorithm. In the presence of unknown time-varying disturbance and uncertain parameters, the improved controller could achieve a higher convergence rate in reaching phase, reduce the overshoot and restrain chattering in sliding phase while performed on the magazine.
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维普
